CVE-2024-26687
published 2024-04-03CVE-2024-26687: In the Linux kernel, the following vulnerability has been resolved: xen/events: close evtchn after mapping cleanup shutdown_pirq and startup_pirq are not…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
xen/events: close evtchn after mapping cleanup
shutdown_pirq and startup_pirq are not taking the
irq_mapping_update_lock because they can't due to lock inversion. Both
are called with the irq_desc->lock being taking. The lock order,
however, is first irq_mapping_update_lock and then irq_desc->lock.
This opens multiple races:
- shutdown_pirq can be interrupted by a function that allocates an event
channel:
CPU0 CPU1
shutdown_pirq {
xen_evtchn_close(e)
__startup_pirq {
EVTCHNOP_bind_pirq
-> returns just freed evtchn e
set_evtchn_to_irq(e, irq)
}
xen_irq_info_cleanup() {
set_evtchn_to_irq(e, -1)
}
}
Assume here event channel e refers here to the same event channel
number.
After this race the evtchn_to_irq mapping for e is invalid (-1).
- __startup_pirq races with __unbind_from_irq in a similar way. Because
__startup_pirq doesn't take irq_mapping_update_lock it can grab the
evtchn that __unbind_from_irq is currently freeing and cleaning up. In
this case even though the event channel is allocated, its mapping can
be unset in evtchn_to_irq.
The fix is to first cleanup the mappings and then close the event
channel. In this way, when an event channel gets allocated it's
potential previous evtchn_to_irq mappings are guaranteed to be unset already.
This is also the reverse order of the allocation where first the event
channel is allocated and then the mappings are setup.
On a 5.10 kernel prior to commit 3fcdaf3d7634 ("xen/events: modify internal
[un]bind interfaces"), we hit a BUG like the following during probing of NVMe
devices. The issue is that during nvme_setup_io_queues, pci_free_irq
is called for every device which results in a call to shutdown_pirq.
With many nvme devices it's therefore likely to hit this race during
boot because there will be multiple calls to shutdown_pirq and
startup_pirq are running potentially in parallel.
------------[ cut here ]------------
blkfront: xvda: barrier or f
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.82-1 (bookworm) | linux 6.1.82-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= d46a78b05c0e37f76ddf4a7a67bf0b6c68bada55 < 9470f5b2503cae994098dea9682aee15b313fa44 | 9470f5b2503cae994098dea9682aee15b313fa44 |
| linux | linux | >= d46a78b05c0e37f76ddf4a7a67bf0b6c68bada55 < 0fc88aeb2e32b76db3fe6a624b8333dbe621b8fd | 0fc88aeb2e32b76db3fe6a624b8333dbe621b8fd |
| linux | linux | >= d46a78b05c0e37f76ddf4a7a67bf0b6c68bada55 < ea592baf9e41779fe9a0424c03dd2f324feca3b3 | ea592baf9e41779fe9a0424c03dd2f324feca3b3 |
| linux | linux | >= d46a78b05c0e37f76ddf4a7a67bf0b6c68bada55 < 585a344af6bcac222608a158fc2830ff02712af5 | 585a344af6bcac222608a158fc2830ff02712af5 |
| linux | linux | >= d46a78b05c0e37f76ddf4a7a67bf0b6c68bada55 < 20980195ec8d2e41653800c45c8c367fa1b1f2b4 | 20980195ec8d2e41653800c45c8c367fa1b1f2b4 |
| linux | linux | >= d46a78b05c0e37f76ddf4a7a67bf0b6c68bada55 < 9be71aa12afa91dfe457b3fb4a444c42b1ee036b | 9be71aa12afa91dfe457b3fb4a444c42b1ee036b |
| linux | linux | >= d46a78b05c0e37f76ddf4a7a67bf0b6c68bada55 < fa765c4b4aed2d64266b694520ecb025c862c5a9 | fa765c4b4aed2d64266b694520ecb025c862c5a9 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.216-1 | 5.10.216-1 |
| linux | linux_kernel | >= 0 < 6.1.82-1 | 6.1.82-1 |
| linux | linux_kernel | >= 0 < 6.7.7-1 | 6.7.7-1 |
| linux | linux_kernel | >= 0 < 6.7.7-1 | 6.7.7-1 |
| linux | linux_kernel | >= 0 < 5.4.0-189.209 | 5.4.0-189.209 |
| linux | linux_kernel | >= 0 < 5.15.0-116.126 | 5.15.0-116.126 |
| linux | linux_kernel | >= 0 < 4.4.0-258.292 | 4.4.0-258.292 |
| linux | linux_kernel | >= 0 < 4.15.0-228.240 | 4.15.0-228.240 |
| linux | linux_kernel | >= 2.6.37 < 6.1.81 | 6.1.81 |
| linux | linux_kernel | >= 6.2 < 6.6.19 | 6.6.19 |
| linux | linux_kernel | >= 6.7 < 6.7.6 | 6.7.6 |
| msrc | cbl2_kernel_5.15.176.3-3_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.182.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.0HIGH
vendor_ubuntu7.0HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
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It was discovered that a race condition existed in the Bluetooth subsystem
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Gui-Dong Han discovered that the software RAID driver in the Linux kernel
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dereference. An attacker could possibly use this to cause a denial of
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Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
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It was discovered that a race condition existed in the Bluetooth subsystem
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possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
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An attacker could possibly use this to cause a denial of service (system
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possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
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properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
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It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of service (system
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Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying cer
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It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker c
OSV
CVE-2024-26687: In the Linux kernel, the following vulnerability has been resolved: xen/events: close evtchn after mapping cleanup shutdown_pirq and startup_pirq are
osv·2024-04-03·CVSS 5.5
CVE-2024-26687 [MEDIUM] CVE-2024-26687: In the Linux kernel, the following vulnerability has been resolved: xen/events: close evtchn after mapping cleanup shutdown_pirq and startup_pirq are
In the Linux kernel, the following vulnerability has been resolved: xen/events: close evtchn after mapping cleanup shutdown_pirq and startup_pirq are not taking the irq_mapping_update_lock because they can't due to lock inversion. Both are called with the irq_desc->lock being taking. The lock order, however, is first irq_mapping_update_lock and then irq_desc->lock. This opens multiple races: - shutdown_pirq can be interrupted by a function that allocates an event channel: CPU0 CPU1 shutdown_pirq { xen_evtchn_close(e) __startup_pirq { EVTCHNOP_bind_pirq -> returns just freed evtchn e set_evtchn_to_irq(e, irq) } xen_irq_info_cleanup() { set_evtchn_to_irq(e, -1) } } Assume here event channel e refers here to the same event channel number. After this race the evtchn_to_irq mapping for e is inv
GHSA
GHSA-7xq6-jm62-ww8g: In the Linux kernel, the following vulnerability has been resolved:
xen/events: close evtchn after mapping cleanup
shutdown_pirq and startup_pirq ar
ghsa_unreviewed·2024-04-03
CVE-2024-26687 [MEDIUM] CWE-459 GHSA-7xq6-jm62-ww8g: In the Linux kernel, the following vulnerability has been resolved:
xen/events: close evtchn after mapping cleanup
shutdown_pirq and startup_pirq ar
In the Linux kernel, the following vulnerability has been resolved:
xen/events: close evtchn after mapping cleanup
shutdown_pirq and startup_pirq are not taking the
irq_mapping_update_lock because they can't due to lock inversion. Both
are called with the irq_desc->lock being taking. The lock order,
however, is first irq_mapping_update_lock and then irq_desc->lock.
This opens multiple races:
- shutdown_pirq can be interrupted by a function that allocates an event
channel:
CPU0 CPU1
shutdown_pirq {
xen_evtchn_close(e)
__startup_pirq {
EVTCHNOP_bind_pirq
-> returns just freed evtchn e
set_evtchn_to_irq(e, irq)
}
xen_irq_info_cleanup() {
set_evtchn_to_irq(e, -1)
}
}
Assume here event channel e refers here to the same event channel
number.
After this race the evtchn_to_irq mapping for e i
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-09-18·CVSS 6.3
CVE-2024-35825 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (s
Ubuntu
Linux kernel (Oracle) vulnerabilities
vendor_ubuntu·2024-08-28·CVSS 5.5
CVE-2024-35955 [MEDIUM] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of service (system
crash). (CVE-2024-22099)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a null pointer dereference vulnerability. A
privileged local attacker could use this to possibly cause a denial of
service (system crash). (CVE-2024-24860)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsyst
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2024-08-23·CVSS 5.5
CVE-2024-39484 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of service (system
crash). (CVE-2024-22099)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a null pointer dereference vulnerability. A
privileged local attacker could use this to possibly cause a denial of
service (system crash). (CVE-2024-24860)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsyste
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2024-08-22·CVSS 5.5
CVE-2024-39292 [MEDIUM] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of service (system
crash). (CVE-2024-22099)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a null pointer dereference vulnerability. A
privileged local attacker could use this to possibly cause a denial of
service (system crash). (CVE-2024-24860)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-08-21·CVSS 5.5
CVE-2024-35955 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of service (system
crash). (CVE-2024-22099)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a null pointer dereference vulnerability. A
privileged local attacker could use this to possibly cause a denial of
service (system crash). (CVE-2024-24860)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Su
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-30·CVSS 6.3
CVE-2024-35785 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacke
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-26·CVSS 6.3
CVE-2024-35785 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-26·CVSS 6.3
CVE-2024-35785 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacke
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-23·CVSS 7.0
CVE-2024-26955 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-23·CVSS 6.3
CVE-2024-26814 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacke
Ubuntu
Linux kernel kernel vulnerabilities
vendor_ubuntu·2024-07-19·CVSS 6.3
CVE-2024-26957 [MEDIUM] Linux kernel kernel vulnerabilities
Title: Linux kernel kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-19·CVSS 7.0
CVE-2024-26882 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-17·CVSS 6.3
CVE-2024-35907 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacke
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-17·CVSS 7.0
CVE-2024-26882 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-16·CVSS 7.0
CVE-2024-24861 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-15·CVSS 6.3
CVE-2024-24861 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacke
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-12·CVSS 7.0
CVE-2024-26955 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the ATA over Ethernet (AoE) driver in the Linux
kernel contained a race condition, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2023-6270)
It was discovered that the Atheros 802.11ac wireless driver did not
properly validate certain data structures, leading to a NULL pointer
dereference. An attacker could possibly use this to cause a denial of
service. (CVE-2023-7042)
Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux
Kernel contained a race condition, leading to a NULL pointer dereference.
An attacker could possibly use this to cause a denial of
Microsoft
xen/events: close evtchn after mapping cleanup
vendor_msrc·2024-04-09·CVSS 5.5
CVE-2024-26687 [MEDIUM] CWE-459 xen/events: close evtchn after mapping cleanup
xen/events: close evtchn after mapping cleanup
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsof
Red Hat
kernel: xen/events: close evtchn after mapping cleanup
vendor_redhat·2024-04-03·CVSS 5.5
CVE-2024-26687 [MEDIUM] CWE-362 kernel: xen/events: close evtchn after mapping cleanup
kernel: xen/events: close evtchn after mapping cleanup
In the Linux kernel, the following vulnerability has been resolved:
xen/events: close evtchn after mapping cleanup
shutdown_pirq and startup_pirq are not taking the
irq_mapping_update_lock because they can't due to lock inversion. Both
are called with the irq_desc->lock being taking. The lock order,
however, is first irq_mapping_update_lock and then irq_desc->lock.
This opens multiple races:
- shutdown_pirq can be interrupted by a function that allocates an event
channel:
CPU0 CPU1
shutdown_pirq {
xen_evtchn_close(e)
__startup_pirq {
EVTCHNOP_bind_pirq
-> returns just freed evtchn e
set_evtchn_to_irq(e, irq)
}
xen_irq_info_cleanup() {
set_evtchn_to_irq(e, -1)
}
}
Assume here event channel e refers here to the same event channel
number
Debian
CVE-2024-26687: linux - In the Linux kernel, the following vulnerability has been resolved: xen/events:...
vendor_debian·2024·CVSS 5.5
CVE-2024-26687 [MEDIUM] CVE-2024-26687: linux - In the Linux kernel, the following vulnerability has been resolved: xen/events:...
In the Linux kernel, the following vulnerability has been resolved: xen/events: close evtchn after mapping cleanup shutdown_pirq and startup_pirq are not taking the irq_mapping_update_lock because they can't due to lock inversion. Both are called with the irq_desc->lock being taking. The lock order, however, is first irq_mapping_update_lock and then irq_desc->lock. This opens multiple races: - shutdown_pirq can be interrupted by a function that allocates an event channel: CPU0 CPU1 shutdown_pirq { xen_evtchn_close(e) __startup_pirq { EVTCHNOP_bind_pirq -> returns just freed evtchn e set_evtchn_to_irq(e, irq) } xen_irq_info_cleanup() { set_evtchn_to_irq(e, -1) } } Assume here event channel e refers here to the same event channel number. After this race the evtchn_to_irq mapping for e is inv
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0fc88aeb2e32b76db3fe6a624b8333dbe621b8fdhttps://git.kernel.org/stable/c/20980195ec8d2e41653800c45c8c367fa1b1f2b4https://git.kernel.org/stable/c/585a344af6bcac222608a158fc2830ff02712af5https://git.kernel.org/stable/c/9470f5b2503cae994098dea9682aee15b313fa44https://git.kernel.org/stable/c/9be71aa12afa91dfe457b3fb4a444c42b1ee036bhttps://git.kernel.org/stable/c/ea592baf9e41779fe9a0424c03dd2f324feca3b3https://git.kernel.org/stable/c/fa765c4b4aed2d64266b694520ecb025c862c5a9https://git.kernel.org/stable/c/0fc88aeb2e32b76db3fe6a624b8333dbe621b8fdhttps://git.kernel.org/stable/c/20980195ec8d2e41653800c45c8c367fa1b1f2b4https://git.kernel.org/stable/c/585a344af6bcac222608a158fc2830ff02712af5https://git.kernel.org/stable/c/9470f5b2503cae994098dea9682aee15b313fa44https://git.kernel.org/stable/c/9be71aa12afa91dfe457b3fb4a444c42b1ee036bhttps://git.kernel.org/stable/c/ea592baf9e41779fe9a0424c03dd2f324feca3b3https://git.kernel.org/stable/c/fa765c4b4aed2d64266b694520ecb025c862c5a9https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
2024-04-03
Published